来自韩国的新发现的,白纪早期的甲状海,为软进化和水生生态提供了洞察力
Minguk Kim1,2, Jongyun Jung2,3, Walter G Joyce4
1Department of Geological and Environmental Sciences, Chonnam National University, Gwangju, 61186 South Korea.
概括
来自韩国的一个新的基底白纪,Byeoljubuchelys yeosuensis,提供了对卡雷托切利类动物进化的见解. 它的原始特征表明划船机动和淡水生态系统的早期水生适应.
科学领域:
- 古生物学的古生物学
- 进化生物学 进化生物学
- 类学 类学 类学 类学
背景情况:
- 以其独特的水生适应性而闻名的Carettochelyidae家族的化石记录有限.
- 了解早期的甲甲类动物进化对于重建的种系和适应水生环境至关重要.
研究的目的:
- 为了描述一个新的基底卡雷托基类海,Byeoljubuchelys yeosuensis gen. et sp. 新,从低白时期的韩国Yeosu的Hasandong形成.
- 为了研究这个新物种在Carettochelyidae家族中的遗传位置和进化适应.
主要方法:
- 用化石海遗骸的形态数据进行了遗传学分析.
- 对外,腰带和四肢元素进行了比较解剖,以推断运动和进化关系.
主要成果:
- 遗传学分析将Byeoljubuchelys yeosuensis定位为Carettochelyidae中最基本的成员.
- 这种物种在其胎盘和手腕上表现出plesiomorphic特征,这表明它可以划船移动.
- 有证据表明,trionychians和白纪中期潮湿气候和淡水适应之间的软获取之间存在联系.
结论:
- 拜奥鲁布切利斯 (Byeoljubuchelys yeosuensis) 提供了对卡雷托切利科 (Carettochelyidae) 的早期进化和水生适应的关键见解.
- 这项研究强调了环境变化在推动软海进化的潜在作用.
- 这一发现有助于我们了解白纪的淡水生态系统适应.
相关概念视频
What is Evolutionary History?
42.8K
Scientists record evolutionary history by analyzing fossil, morphological, and genetic data. The fossil record documents the history of life on Earth and provides evidence for evolution. However, both fossil and living organisms offer evidence that outlines Earth’s evolutionary history.
42.8K
The Fossil Record
27.0K
The fossil record documents only a small fraction of all organisms that have ever inhabited Earth. Fossilization is a rare process, and most organisms never become fossils. Moreover, the fossil record only exhibits fossils that have been discovered. Nevertheless, sedimentary rock fossils of long-lived, abundant, hard-bodied organisms dominate the fossil record. These fossils offer valuable information, such as an organism's physical form, behavior, and age. Studying the fossil record helps...
27.0K
Convergent Evolution
31.3K
Evolution shapes the features of organisms over time, ensuring that they are suited for the environments in which they live. Sometimes, selection pressure leads to the rise of similar but unrelated adaptations in organisms with no recent common ancestors, a process known as convergent evolution.
31.3K
Speciation Rates
22.5K
Overview
22.5K
Non-vascular Seedless Plants
70.8K
The diverse plant life on Earth—consisting of nearly 400,000 species—can be divided into three broad categories based on biological characteristics: nonvascular, seedless vascular, and seed plants.
70.8K
Comparative Excretory Systems
26.4K
Animals have evolved different strategies for excretion, the removal of waste from the body. Most waste must be dissolved in water to be excreted, so an animal’s excretory strategy directly affects its water balance.
26.4K


